Commode



2 Sheets-Sheet 1.

NO'MOaeI.

D. H. MURPHY.

Patented Aug. 2, 1892.

COMMODE.

II I (III I (N9 Model.)

2 Sheets-Sheet 2. D. H. MURPHY.

GOMMODE.

Patented Aug. 2, 1892.

NITED STATES PATENT FFrcE.

DANIEL II. MURPHY, OF HARTFORD, CONNECTICUT.

COMMODE.

SPECIFICATION forming part of Letters Patent No. 479,897, dated August2, 1892.

Application filed May 25, 1891. Serial No. 393,944. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL H. MURPHY, a citizen of the United States,residing at Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inCommodes, of which the following is a full, clear, and exactspecification.

The invention relates to the class of commodes or dry closets, moreparticularly adapted for railway-cars, which are sealed at all times toprevent the entrance of dust and dirtladen drafts of air through thecloset and the diifusion through the compartment in which the commode islocated of effluvia and fetid odors from the dregs deposited in thecloset.

The object of my invention is to provide a cheaply constructed devicehaving simple mechanism which is liable not to become disarranged ordamaged, for furnishing a new lining for'the interior after the use,whereby the commode without constant cleaning is kept fresh, addinggreatly to the comfort and convenience of the users and the occupants ofthe cars.

Referring to the accompanying drawings, Figure 1 is a front elevationwith the casing cut away to show the interior with the seat raised asinits normal position. Fig. 2 is a similar view showing the seat depressedas when the closet is in use. Fig. 3 is a plan view of the closet withthe seat cut away. Fig. 4 is a detail sectional view of one of thefeed-rolls and its shaft. Fig. 5 is a detail end view of the same. Fig.6 is a detail view illustrating the position of the knife when severingthe lining.

In the views the letter a indicates a casing constructed of any suitablematerial of the desired shape, with a seat I) hinged to the back. Onshafts 0, preferably extending from front to rear of this casing belowthe seat, are supported feed-rolls d, so located as to close the openingthrough the commode. A portion of the periphery of these rolls d, whichform a rotary bottom for the commode, is usually cut away or hollowedout, while a portion isformed on the arc of a circle. The circularportion is provided with teeth 01, adapted to grasp the lining material6, which is wound upon rolls f, that in the form shown are looselysupported by bearings formed on the sides of the casing below thefeed-rolls, and of course these rolls may be located outside of thecasing in the closet adjacent to the commode, if desired. To the shaftsc are secured leaves 0, bearing spring-pawls 0 that engage with theteeth on the ratchets 0 secured to the pinions 0 that are mountedloosely upon the shafts. In mesh with these pinions are segmental gearsg, cut on the end of the levers g, pivoted to the casing. In theconstruction shown the ends of these levers are connected by pins g thatproject into the slot h with a slide it that is attached to the underside of the seat.

Supported by rods *5, adjacent to the surface of each of the feed-rolls,are knives j, adapted to reciprocate toward and from the rolls to severthe lining material at the proper moinent. These rodst' are secured toshafts It, to which are secured levers Z, having one end weighted orprovided with an equivalent means for normally holding those endsdownward, while the opposite ends are adapted to engage teeth on thetrips on, that are hinged to the seat. Blocks m are so located upon thecasin g in the path of the trips that the teeth are withdrawn fromcontact with the levers Z at the desired moment when they descend withthe seat. The knives j may be made plain blades, or the cutting-edge maybe made sawtoothed, and to insure the severing of the lining materialthey may be made to reciprocate into longitudinal grooves d in theperiphery of the feed-rolls, which also have peripheral grooves d toallow the passage of the teeth that project from the rolls when therolls are revolved. Thin metal guards n may be secured to the casing toprotect the rolls of lining material, and the upper edges of theseguards may be turned so as to very nearly come in contact with theperiphery of the feed-rolls as they revolve to remove any of the liningmaterial that should accidentally adhere to the surface of the rolls.

The seat is normally lifted a slight distance by means of springs 0, orby weights, if desired, and the ends of the lining material, which maybe thin cheap paper or a similar material, are thrust upon the teethprojecting from the feed-rolls, which are turned so that the sealingmaterial covers the rolls and lines the interior. When the seat isdepressed by the weight of a person, the slide descends, causing thelevers and racks to rotate the ratchet-pinions one-half a revolutionfreely, so that the pawls slide over the teeth to the proper position,which on the return movement of the levers and pinions will turn thefeed-rolls onehalf of a revolution in the opposite direction. At thesame time when the seat is depressed the trips oscillate the weightedlevers, so that the knives move toward the rolls and sever lengths ofthe lining material, and when the trips come in contact with the blocksand are thrown out of engagement with the levers the weights retract theknives from the rolls. When the weight is taken from the seat and it isfree to rise, the lifting of the slide oscillates the levers and theracks, which drive the pinions and cause the feed-rolls to make one-halfa revolution, as above described, allowing the severed portions of thelining material upon which the deposit has been made to pass betweenthem and escape through the bottom of the closet, while a fresh liningis carried over the interior to receive the next deposit. The openingthrough the com mode is always closed by the feed-rolls which form thebottom, and upon each revolution after use a fresh lining is broughtover the bottom, so that no drafts of air can enter through the closetand bring dust, dirt, and offensive odors into the compartmen t.

I claim as my invention- 1. The combi11ation,with a rotary receiver,

of a destructible lining passing over said receiver, and a knife forsevering a portion of the lining before each rotation of the receiver,substantially as specified.

2. The combination, with a movable seat, of a receiver rotated by themovement of the seat, a destructible lining passing over said receiver,and a knife for severing a portion of the lining before each rotation ofthe receiver, substantially as specified.

3. The combination, with a movable seat, of a receiver connected withand rotated by the movement of the seat, a destructible lining passingfrom each side over the receiver, and a knife for severing a portion ofthe lining before each rotation of the receiver, substantially asspecified.

4. A commode having a bottom formed of two rolls, a destructible liningpassing over each of the rolls, and knives for severing portions of thelining before each movement of the rolls, substantially as specified.

5. A commode having a movable seat, a bottom formed in two partsconnected with the seat, a destructible lining passing from each sideover the parts, and knives connected with the seat for severing portionsof the lining at each movement of the seat, substantially as specified.

DANIEL H. MURPHY.

Witnesses:

H. R. WILLIAMs, ALLISON L. PEAN.

